There's an article somewhere (read it many years ago) with the story about the first days of Tinder. The way they got their first users was to send (IIRC) the marketing strategist (a woman) to talk to attractive young women in bars and parties, show them how easy it was to use, and convince them to install the app themselves.

I would say that this points to the real issues: that OkCupid was something one did on their desktop at home while Tinder sold itself as something one does for fun at the bar, and that most people are laser-focused on looks in detriment of everything else. Last time I used Bumble (which was supposed to be "deeper" than Tinder) I'd yell in frustration, scrolling profile after profile without even the tiniest bit of information, eventually reaching the conclusion that people just don't want to read or write profiles.

A new OkCupid would have to position itself as the "eat your vegetables" alternative in a world full of candy. There is a market for that, sure, but it will remain a niche at best.